Receptacle and closure therefor.



E. M. POTTER.

RECEPTACLE AND CLOSURE THEREFOR.

APPLICATION FILED JUNE 8' 1914.

Patented Jan. 11, 1916.

WITNESSES EJ111115 M. Poflter,

COLUMBIA PLANOGRAPH CO.,WASHINGTON, u. c.

ELLIS M. POTTER, OF NEW YORK, N. Y.

RECEPTACLE AND CLOSURE THEREFOR.

Specification of Letters Patent.

Patented Jan. 11, 1916.

Application filed June 8, 1914. Serial No. 843,824.

To (ZZZ whom it may concern:

Be it known that I, ELLis M. POTTER, a citizen of the United States, anda resident of New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Receptacles andClosures Therefor, of which the following is a full, clear, and exactdescription, whereby any one skilled in the art may make and use thesame.

The invention relates to receptacles and more particularly to a closureor cover by which the contents of the receptacle or vessel may be madeaccessible at all times and which will positively seal the mouth of thereceptacle.

The invention relates more particularly to providing a metal cap or sealfor receptacles formed of frangible material, such as earthenware, glassand the like having necks and openings of irregular form.

The object of the invention is to provide a tight seal or closure ofmetal for a frangible receptacle with a removable portion of aspring-cap form Which, while in place, provides a hermetic seal.

A further object is to provide a metal cap or seal which may be appliedto a receptacle or vessel of a frangible character having an irregularconformation such as earthenware about its neck or opening with outliability of fracturing the vessel during the application of the cap orclosure.

Referring to the drawings: Figure l is a perspective view of areceptacle having a metal closure and a cap which fits an opening in theclosure. F ig. 2 is a sectional Fig. 8 is a detail view on enlargedscale.

fragmentary view, illustrating the manner of applying the metal cap andsealing the vessel. Fig. 4 illustrates a modified form of closure. Fig.5 illustrates the sealing gasket below the lip of the receptacle. Fig.

6 illustrates the gasket applied to the side of the neck of thereceptacle.

It has long been a practice to employ what is commonly known as a springcap for tin and metallic receptacles. In such devices, the head of thecan or receptacle is provided with an opening having a down turnedflange thereabout and within said opening, fits a dish-like cap which isinserted through the opening of the head and is provided with a flangeextending outwardly over the head so that it may be removed. The veryconformation of a metallic receptacle gives resiliency enough throrghoutthe body of the receptacle to maintain the head without distortion sothat the spring cap will always fit therein and effectively close thetop of the can.

The present invention is directed toward providing a frangible body-partof inert character without give or spring to which may be applied apermanent metallic cap so arranged and disposed and applied that aspring cap may be utilized in conjunction therewith.

It has also been a common practice in the art to provide receptacles agasket member underlying the cover which, in conjunction with a clampingmeans of some sort, securely seals the mouth of the receptacle.

Where metal receptacles are employed, the metal spring cap may be veryeffectively used and with glass or earthenware receptacles, the coverand gasket, with the removable clamping device has been found effective.

The present invention is directed to securing all of the advantages ofcaps heretofore enumerated and obviating objections thereof by providinga receptacle of frangible character having a permanent metallic cap soset and sealed that a spring cap may be employed therewith.

lass or earthenware receptacles, of necessity, have irregularities intheir conformation and it has been found to be practically impossible toprovide a permanent metal cover for such receptacles with a removablecap portion of the spring type such as above first referred to.

The difficulty of providing metal covers on frangible receptacles isalmost entirely due to the irregular conformation and the inertness andfrangibility of a material of the receptacle and where tools areemployed to swage a metallic cap upon the vessel, a prohibitive breakageoccurs.

It is the object of the present invention to provide a closure whichembodies a metallic member swaged into intimate contact with the mouthor neck of the receptacle and provided with a removable spring cap.There is thus provided in effect, a complete metal closure and ashereinafter defined, a closure which may be applied to receptacles ofthe frangible type without great danger of breakage in manufacture. Theadvantages of such a device are apparent.

with a cover and Referring to Fig. 1, there is illustrated a receptacleA which, as hereinshown, is of the type suitable for extracts orpreserves and is preferably formed of earthenware. To the upper end ofthis receptacle, there is permanently secured a metallic cap 1 having acentral orifice 2 within which fits a spring cap 3.

As illustrated in Fig. 2, the upper end of the receptacle A is providedwith a' neck 1 of substantial proportions and having a shoulder 55. Themetal cap 1 is stamped out and struck up into a suitable form to bepassed down over the sides of the neck 41 and swaged under the shoulder5, as illustrated at 6. This metal cap section 1 is preferably providedwith a central orifice 2 having a down-turned edge 7 and with one ormore depressions 8 which will give a spring action to the edge of theorifice 2. I'Vithin the orifice 2 may be inserted the metallic springcap member 3 which, as illustrated, is of dished form and provided witha flange 9 by which it may be removed and which prevents the cap beinginserted to too great a depth in the opening 2. To remove the spring cap3, any convenient device may be inserted over the edge 10 of themetallic cap 1 and under the flange 9 of the removable cap. member 3. Byprying against the cap it may be readily loosened. It thus forms aremovable spring cover of hermetic sealing type for the receptacle.

In Figs. 3 to 6 inclusive, there are illustrated various types ofgaskets which in conjunction with the metallic spring cap, serve tohermetically seal the receptacle. In Fig. 3, the cap l has between itand the upper edge 11 of the receptacle, a gasket 12 which may be of ametal softer than that of the metallic cap or of any other suitablematerial.

By employing a gasket as illustrated, a suflicient pressure may beexerted by suitable tools upon the metallic cap 1 to bring it downfirmly and securely into contact with the sides and under shoulders 5 ofthe neck of the receptacle without destroying the conformation of thecap and without distorting the spring edge of its perforation withinwhich is to be fitted the spring cap. There will be su'lficient give inthe gasket to permit the cap to be firmly swaged into place and thiselasticity will prevent breaking of the receptacle as the cap is appliedand will prevent distortion thereof although the bodypart of thereceptacle is of inelastic and inert character.

In Fig. 1, the gasket 13 is illustrated as covering the side 14, theshoulder 15 and the inside periphery 16 of the neck of the receptacle.This form of device may be used where extremely frangible material isemployed for the receptacle and it has a further advantage of forming aseal for the removable cap. As illustrated, the permanent metallic cappart 17 has an opening so that the removable cap will impinge againstthe gasket 13 where it projects over the inside of the mouth of thereceptacle 16.

In Fig. 5, the gasket 18 is illustrated as arranged under the shoulder19 of the neck of the receptacle and the metallic cap at 20 will swagedown over the neck and over the gasket 18.

In Fig. 6, the permanent metallic cap 21, is swaged under the shoulder22 about the mouth of the receptacle, as in Figs. 1, 2, 3, and 4:. Thegasket 23 for giving the necessary relief and hermetically sealing thecap with reference to the receptacle is arranged in a groove 2 1 whichsurrounds the neck of the receptacle.

It is apparent that many modifications might be devised with referenceto the gasket and cap and, of course, where the vessel is to behermetically sealed, the gasket is all important. However, inreceptacles for use with materials which do not require sealing from theair, the permanent portion of the closure may be secured'thereto bymerely swaging the down-turned ends of the cap under the shoulder of theneck of the receptacle. It is of course, to be understood that acomparatively thin, light metal is employed for the closure and onewhich is ductile enough to permit swaging. It will also be observed thatthe central portion of the metallic cap may be depressed so that theremovable spring cap 3 will always lie below the plane of the neck ofthe receptacle. This permits stacking of the packages without liabilityof disturbing the closure or removable cap.

The metallic closure is first stamped out and formed to fit loosely overthe mouth of the receptacle and its dependent edges are.

then swaged into position under the shoulder of the neck. Where delicateand frangible receptacles are used, the gasket serves to relieve strainswhich would ordinarilv cause breakage.

In practice, the receptacle is held in a suitable chuck and the cap ispressed down upon the neck with a suitable cooperating chuck. The parts,while in this position, arerotated and a formingtool presses themetallic cap as to its dependent edges into close contact with theshoulder of the neck. It is apparent that by using chuck members, theface of the cap may be held in its prescribed form without distortingthe central spring cap after the permanent cap part is swaged to theneck of'the recepta le.

The device, as a whole, presents a package and receptacle having apermanent metallic cap with a removable spring cap section which servesas a perfect seal.

The device as illustrated in the drawings shows a removable cap which ispressed into the orifice of the permanent metallic cap.

the vessel may be hermetically sealed by the spring cap and it ispossible to secure the permanent metallic cap section to the frangiblevessel.

What I claim as my invention and desire to secure by Letters Patent is:

1. A receptacle having a closure consisting of a metallic cap swagedabout the neck of the receptacle and provided with a spring-rimmedopening and a removable spring cap fitting within said opening.

2. An earthenware receptacle having a shoulder about its neck, ametallic cap fitting over the neck of the receptacle and swaged underthe shoulder and provided with a central spring-rimmed orifice and aremovable spring cap inserted through said orifice.

3. A receptacle having a metallic cap section adapted to be swaged intointerlocking engagement with the neck of the receptacle to form ahermetically sealed cap and a gasket interposed between the metal capand neck of the receptacle, said cap pro vided with a spring-rimmedopening and a removable metallic spring cap fitting within the opening.

4. An earthenware receptacle having a metallic spring cap formed of asingle piece of material and having a central opening and a spring rimsurrounding the opening, said cap permanently swaged into engagementwith the receptacle and a removable metallic cap fitting the opening.

5. An earthenware receptacle having a metallic cap swaged about itsneck, said cap having a central depressed portion and a central springopening of annular form and a remo able spring cap fitting said opening,said cap and depressed portion lying below the upper surface of thereceptacle.

6. An earthenware receptacle having a metallic cap embracing the innerand outer walls of the mouth of the receptacle and swaged about the neckthereof to form a hermetically sealed cap, a gasket interposed betweenthe metallic cap portion and neck of the receptacle, said cap providedwith a spring rimmed opening and a removable metallic spring cap fittingwithin the openg ELLIS M. POTTER. Witnesses:

KATE BRENNER, WM. B. HILL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

